解析Google天气的xml文件

<?xml version="1.0" encoding="UTF-8"?> <xml_api_reply version="1"> <weather module_id="0" tab_id="0" mobile_row="0" mobile_zipped="1" row="0" section="0"> <forecast_information> <city data="Qingdao, Shandong" /> <postal_code data="Qingdao" /> <latitude_e6 data="" /> <longitude_e6 data="" /> <forecast_date data="2012-04-17" /> <current_date_time data="2012-04-18 02:00:00 +0000" /> <unit_system data="SI" /> </forecast_information> <current_conditions> <condition data="晴" /> <temp_f data="52" /> <temp_c data="11" /> <humidity data="湿度： 33%" /> <icon data="/ig/images/weather/sunny.gif" /> <wind_condition data="风向： 南、风速：7 米/秒" /> </current_conditions> <forecast_conditions> <day_of_week data="周二" /> <low data="7" /> <high data="19" /> <icon data="/ig/images/weather/mostly_sunny.gif" /> <condition data="以晴为主" /> </forecast_conditions> <forecast_conditions> <day_of_week data="周三" /> <low data="7" /> <high data="16" /> <icon data="/ig/images/weather/mostly_sunny.gif" /> <condition data="晴间多云" /> </forecast_conditions> <forecast_conditions> <day_of_week data="周四" /> <low data="7" /> <high data="17" /> <icon data="/ig/images/weather/cn_fog.gif" /> <condition data="雾" /> </forecast_conditions> <forecast_conditions> <day_of_week data="周五" /> <low data="8" /> <high data="17" /> <icon data="/ig/images/weather/cn_fog.gif" /> <condition data="雾" /> </forecast_conditions> </weather> </xml_api_reply>
首先是Google天气的api.xml

// 2012-4-17下午07:09:03 package com.su.weatherxml; import java.io.InputStream; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import org.apache.http.util.EntityUtils; import org.xmlpull.v1.XmlPullParser; import android.util.Log; import android.util.Xml; import android.widget.Toast; public class PULLMode { private static final String TAG = "PULLMODE"; public HashMap<String, String> getCurrentInfo(InputStream inStream) throws Throwable { Log.i(TAG, "1"); HashMap<String, String> infoMap = new HashMap<String, String>(); XmlPullParser parser = Xml.newPullParser(); parser.setInput(inStream, "UTF-8"); int eventType = parser.getEventType();// 产生第一个事件 Log.i(TAG, eventType + ""); while (eventType != XmlPullParser.END_DOCUMENT) {// 只要不是文档结束事件 switch (eventType) { case XmlPullParser.START_DOCUMENT: break; case XmlPullParser.START_TAG: String name = parser.getName();// 获取解析器当前指向的元素的名称 if ("city".equals(name)) { infoMap.put("city", parser.getAttributeValue(0));// 获取解析器当前指向元素的下一个文本节点的值 } if ("wind_condition".equals(name)) { infoMap.put("wind_condition", parser.getAttributeValue(0)); } break; case XmlPullParser.END_TAG: if ("xml_api_reply".equals(parser.getName())) { Iterator iter = infoMap.entrySet().iterator(); while (iter.hasNext()) { Map.Entry entry = (Map.Entry) iter.next(); String key = entry.getKey().toString(); String val = entry.getValue().toString(); Log.i(TAG, key + " " + val);// 遍历hashmap方法输出信息 } break; } } eventType = parser.next();// 每个节点都要进行判断 } return infoMap; } public List<WeatherBean> getWeatherBeans(InputStream inStream) throws Throwable { List<WeatherBean> wheatherBeans = null; WeatherBean wheatherBean = null; XmlPullParser parser = Xml.newPullParser(); parser.setInput(inStream, "UTF-8"); int eventType = parser.getEventType();// 产生第一个事件 while (eventType != XmlPullParser.END_DOCUMENT) {// 只要不是文档结束事件就进行循环 switch (eventType) { case XmlPullParser.START_DOCUMENT: wheatherBeans = new ArrayList<WeatherBean>(); break; case XmlPullParser.START_TAG: String name = parser.getName();// 获取解析器当前指向的元素的名称 if ("forecast_conditions".equals(name)) wheatherBean = new WeatherBean(); if (wheatherBean != null) {// 只有当whetherBean被new后才执行这里 向里面添加数据 if ("day_of_week".equals(name)) { wheatherBean.setDayofweek(parser.getAttributeValue(0)); Log.i(TAG, parser.getAttributeValue(0)); // parser还有很多其他的方法 比如nextText(); } if ("low".equals(name)) { wheatherBean.setLow(new Integer(parser .getAttributeValue(0))); Log.i(TAG, parser.getAttributeValue(0)); } if ("high".equals(name)) { wheatherBean.setHigh(new Integer(parser .getAttributeValue(0))); Log.i(TAG, parser.getAttributeValue(0)); } if ("condition".equals(name)) { wheatherBean.setCondition(parser.getAttributeValue(0)); Log.i(TAG, parser.getAttributeValue(0)); } } break; case XmlPullParser.END_TAG: if ("forecast_conditions".equals(parser.getName())) { wheatherBeans.add(wheatherBean); wheatherBean = null; } break; } eventType = parser.next(); } return wheatherBeans; } }
PULL解析的方法;由于api.xml的前面几行不是很对称,所以把前面的信息存贮在了map中,后面的存储在list<WeatherBean>

// 2012-4-17下午08:41:38 package com.su.weatherxml; import java.io.InputStream; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import javax.xml.parsers.SAXParser; import javax.xml.parsers.SAXParserFactory; import org.xml.sax.Attributes; import org.xml.sax.SAXException; import org.xml.sax.helpers.DefaultHandler; import android.util.Log; public class SAXMode { public static final String TAG = "SAXmode"; public HashMap<String, String> getCurrentInfo(InputStream inStream) throws Throwable { SAXParserFactory factory = SAXParserFactory.newInstance(); SAXParser parser = factory.newSAXParser(); mWeatherParser mweatherParser = new mWeatherParser(); parser.parse(inStream, mweatherParser); inStream.close(); return mweatherParser.getWeatherBeans(); } private final class mWeatherParser extends DefaultHandler { private HashMap<String, String> infoMap = new HashMap<String, String>();; private String tag = null; public HashMap<String, String> getWeatherBeans() { return infoMap; } @Override public void startDocument() throws SAXException {// 开始文件 } @Override public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { if (infoMap != null) { if ("city".equals(localName)) { infoMap.put("city", attributes.getValue(0)); Log.i(TAG, attributes.getValue(0)); } if ("wind_condition".equals(localName)) { infoMap.put("wind_condition", attributes.getValue(0)); Log.i(TAG, attributes.getValue(0)); } } tag = localName; } @Override public void characters(char[] ch, int start, int length) throws SAXException {// 遇到文字(标签之间) } @Override public void endElement(String uri, String localName, String qName) throws SAXException {// 结束节点 tag = null; } } public List<WeatherBean> getWeatherBeans(InputStream inStream) throws Throwable { SAXParserFactory factory = SAXParserFactory.newInstance(); SAXParser parser = factory.newSAXParser(); WeatherParser weatherParser = new WeatherParser(); parser.parse(inStream, weatherParser); inStream.close(); return weatherParser.getWeatherBeans(); } private final class WeatherParser extends DefaultHandler { private List<WeatherBean> weatherBeans = null; private String tag = null; private WeatherBean weatherBean = null; public List<WeatherBean> getWeatherBeans() { return weatherBeans; } @Override public void startDocument() throws SAXException {// 开始文件 weatherBeans = new ArrayList<WeatherBean>(); } @Override public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException { if ("forecast_conditions".equals(localName)) {// 开始解析节点(标签) weatherBean = new WeatherBean(); } if (weatherBean != null) { if ("day_of_week".equals(localName)) { weatherBean.setDayofweek(attributes.getValue(0)); Log.i(TAG, attributes.getValue(0)); } if ("low".equals(localName)) { weatherBean.setLow(new Integer(attributes.getValue(0))); } if ("high".equals(localName)) { weatherBean.setHigh(new Integer(attributes.getValue(0))); } if ("condition".equals(localName)) { weatherBean.setCondition(attributes.getValue(0)); } } tag = localName; } @Override public void characters(char[] ch, int start, int length) throws SAXException {// 遇到文字(标签之间) } @Override public void endElement(String uri, String localName, String qName) throws SAXException {// 结束节点 if ("forecast_conditions".equals(localName)) { weatherBeans.add(weatherBean); weatherBean = null; } tag = null; } } }
SAX解析